Johnnie Moore
I met Johnnie at reboot where he and James Cherkoff presented a scaled-down version of their Open Sauce Live workshop. I really enjoyed the workshop, which tries to communicate something about what "open source is like" to people who don't know. And I marveled at the open, interactive, theatrical style of Johnnie and James.
Later in the conference, with help from Olle who broke the ice, I got a chance to talk to Johnnie about his work and his style, and learned more about his work with Open Spaces and theatrical improvisation. I also learned that he's friends with Rob -- through their blogs. Turns out Johnnie knows my old friend Chris Corrigan too, thus proving the world is, indeed, very small.
You can read more about Johnnie on his website or his weblog.